BubbleBot
What does it do?
Navigates via Ultrasound, annoys the dogs
This is the most complete robot I've ever made. That's because I intentionally killed it right after I made the video:
I was so sick of this thing that I did what anyone would do: I stuck an X-acto knife in his head.
BubbleBot started life as an RC Car:
Cost to build
$45,00
Embedded video
Finished project
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[original story: Let's Make Robots]